When 1.204 x 1025 molecules of methane are combined with oxygen, how many dm3 of carbon dioxide are produced at standard pressure and 415 K? CH4 + 2O2 → CO2 + 2H2O
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The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Which of the following are correct values for the ideal gas laws constant r